Senior Systems Software Engineer

• Develop new features for the Firefox Profiler
• Expand the breadth of data captured by the Firefox Profiler without compromising on performance
• Engage with the performance team efforts such as bug triage and strategy
• Engage with other Firefox engineers to help them learn how to use our tools efficiently, and develop projects to serve them better
• Promote and encourage the use of our performance tools within and beyond Mozilla by writing and talking about them
• Engage with our community and mentor volunteers contributing to the codebase

• 5+ years of experience in systems software engineering using C++
• 1+ year of experience in Rust
• Expertise in at least one of the following operating system APIs and familiarity with the others: Windows/Linux/macOS/Android
• Experience working on and debugging large multi-threaded applications and memory management
• Strong and respectful communication skills and ability to collaborate across engineering teams

Familiarity with any of the following skills would be a plus: JavaScript, Java, Android development, Python

• Generous performance-based bonus plans
• Rich medical, dental, and vision coverage
• Generous retirement contributions with 100% immediate vesting
• Quarterly all-company wellness days
• Country specific holidays plus a day off for your birthday
• One-time home office stipend
• Annual professional development budget
• Quarterly well-being stipend
• Considerable paid parental leave
• Employee referral bonus program
• Other benefits (life/AD&D, disability, EAP, etc. - varies by country)
• Flexible work environment
• Industry-leading paid parental leave (up to 26 weeks of fully paid leave for childbearing parents and up to 12 weeks for non-childbearing parents)
• Reimbursement for professional development (up to $3,000/year)
• A work setup including the latest hardware and software of your choice